textproduct: Quad Cities

UPDATE

Issued at 1114 AM CDT Sun Sep 20 2026

The ongoing areal flood warnings will continue through early afternoon, as several creeks are known to be flooding in eastern Iowa, including Indian Creek in Linn County. Though some flooding will continue, the water was reported to have stopped rising early this morning, and impacts will be improving this afternoon/evening, resulting in expirations of the flood watch, and areal flood warnings.

Additional rain the next 24 hours. in the short term will be very light, and under 0.25 with certainty. However, as is often the case in cool season events, this will be a high pop, low qpf event today, and again Monday/Monday night leading to an overall wet period continuing through through Tuesday morning.

SHORT TERM /THROUGH TONIGHT/

Issued at 250 AM CDT Sun Sep 20 2026

Heavy rain and some flooding-producing MCS acrs the area ATTM will continue to linger and produce some wrap around rains well into Sunday morning especially in the east. With expected flooding and lingering flash flooding problems as well as swollen creeks/rivers coming up, have extended the Flood Watch through 18z. This with the idea that the next shift can cancel portions of the Watch from the west and the north as need be. The rest of the day into the evening behind the exiting LLVL wave to be cloudy, breezy and cooler in the 60s to low 70s with some spotty sprinkles or light rain.

The northeast winds and clouds to continue tonight, keeping fog at bay. There is some fog this Sunday morning in the precip lull areas such as the Hwy 20 corridor. As the upper low currently acrs WY rolls toward the northeastern plains through Monday morning, more showers may pop up and push into the western CWA late tonight into Monday morning. Low temps tonight generally in the 50s.

LONG TERM /MONDAY THROUGH SATURDAY/

Issued at 250 AM CDT Sun Sep 20 2026

Monday and Tuesday...As the above mentioned cool core upper low propagates acrs MN and IA, it should continue the mostly cloudy and light showery regime for the local area into portions of Tue. Highs in the 60s with lows in the 50s. If some clearing occurs Tue night, currently fcst thicknesses support lows in the 40s. If sfc winds trend light the same night, will have to keep fog in mind.

Wednesday through Saturday...Quick look at the longer range suggests kind of a messy and partially blocked upper air pattern, with enough ridging close by or overhead to keep the area mainly dry Wed into Thu, before an undercutting wave battles the ridging to bring the next main chance of rain/showers by Friday into Friday night. Temps look seasonable for the end of the week.

AVIATION /12Z TAFS THROUGH 12Z MONDAY/

Issued at 616 AM CDT Sun Sep 20 2026

The heaviest of the showers and storms are quickly moving east of the MS River this morning. However, in it's wake we are left with a low stratus that will be going nowhere today. This will be a fairly deep cloud layer as well, so occasional periods of -RA or DZ will be observed much of the day. Cloud heights will predominately remain IFR this period, though some improvements to MVFR levels will be possible up at DBQ and CID as some drier low level air filters in with the NNE winds. As for when we may finally rid ourselves of the stratus, it could be all the way until Wednesday before we see significant clearing of the skies.

DVN WATCHES/WARNINGS/ADVISORIES

IA...Flood Watch until 1 PM CDT this afternoon for IAZ040>042- 051>054-063>068-076>078. IL...Flood Watch until 1 PM CDT this afternoon for ILZ001-002-007- 009-015>018-024. MO...None.